Journal articles: 'Blueberries'

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LaPalme, André M., and Andre M. LaPalme. "Blueberries." Frontiers: A Journal of Women Studies 14, no. 1 (1993): 140. http://dx.doi.org/10.2307/3346567.

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Silver, Breezy, and Michelle Allen. "Blueberries." Journal of Agricultural & Food Information 13, no. 1 (January 2012): 7–13. http://dx.doi.org/10.1080/10496505.2012.639664.

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Savage Brosman, Catharine. "Blueberries." Critical Quarterly 44, no. 2 (July 2002): 66. http://dx.doi.org/10.1111/1467-8705.00418.

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Yannantuono, Fred. "Blueberries?" Chest 142, no. 2 (August 2012): 536. http://dx.doi.org/10.1378/chest.11-2530.

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Hanson, Danielle. "Picking Blueberries." English Journal 93, no. 4 (March 2004): 104. http://dx.doi.org/10.2307/4128999.

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Stecyk, J. A. W. "BENEFICIAL BLUEBERRIES." Journal of Experimental Biology 209, no. 17 (September 1, 2006): v. http://dx.doi.org/10.1242/jeb.02468.

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Kenyon, Nicole. "Cultivated Blueberries." Nutrition Today 32, no. 3 (May 1997): 122–24. http://dx.doi.org/10.1097/00017285-199705000-00005.

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Kafkas, Ebru, and İpek Ürün. "Why Blueberries?" Agricultural Sciences 14, no. 08 (2023): 1121–31. http://dx.doi.org/10.4236/as.2023.148075.

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Samani, Pari, Sophia Costa, and Shuowei Cai. "Neuroprotective Effects of Blueberries through Inhibition on Cholinesterase, Tyrosinase, Cyclooxygenase-2, and Amyloidogenesis." Nutraceuticals 3, no. 1 (January 3, 2023): 39–57. http://dx.doi.org/10.3390/nutraceuticals3010004.

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Blueberries are rich in polyphenolic compounds and have shown improvement in cognitive function in several clinical trials. The molecular basis of the neuronal protection of blueberries, however, is not fully understood. The objective of this research is to understand the biochemistry basis of neuronal protection effects of blueberries through their impacts on several enzymes and pathways involved in Alzheimer’s disease (AD) and other neurodegenerative diseases. We examined the inhibition effects of blueberries on the enzymatic activity of cholinesterase (acetylcholinesterase, AChE; and butyrylcholinesterase, BuChE), tyrosinase, and cyclooxygenase-2 (COX-2). The effects of blueberries on the biosynthesis of acetylcholinesterase in a cellular model were also studied. Further, the effect of blueberries on amyloid fibril formation was evaluated. Our results showed that blueberries directly inhibit the enzymatic activity of AChE, BuChE, tyrosinase, and COX-2, with the IC50 at 48 mg/mL, 9 mg/mL, 403 mg/mL, and 12 mg/mL of fresh berry equivalent, respectively. Further, blueberries delay the amyloid fibril formation by 24 h at 39 mg fresh berry/mL. It also reduces the synthesis of acetylcholinesterase synthesis at 19 mg fresh berry/mL in a cellular model. Those results suggested that the neuroprotection effects of blueberries may involve different pathways, including enhancing cholinergic signaling through their effect on cholinesterase, reducing neuroinflammation through inhibition of COX-2, and reducing amyloid formation. Collectively, blueberries may play a vital role in neuronal protection beyond their antioxidant activity and our results provide more molecular mechanisms for their neuroprotective effects, and support blueberries being nutraceutical to improve cognitive function.

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Georgieva, Rada, Petar Nedyalkov, Vesela Nevelinova Shopska, and Maria Kaneva. "Effect of blueberries addition during beer maturation on yeast metabolism." Food Science and Applied Biotechnology 4, no. 2 (October 9, 2021): 105. http://dx.doi.org/10.30721/fsab2021.v4.i2.134.

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In recent years, there has been a significant interest in beverages with increased biological value, such as beer with blueberries. In this study, blueberries were added at the beginning of maturation of lager beer with an initial extract of 12, 14 and 16ºP. The effect of blueberries addition on yeast metabolism was investigated as concentration of ethanol, higher alcohols, esters, aldehydes, and vicinal diketones in the final beer were measured and compared to control samples without blueberries. The results showed that blueberries affected positively ethanol formation only when wort with initial extract of 12°P was used and had no significant effect when wort with higher extract was used. In regard to secondary metabolites, blueberries addition led to a decrease in higher alcohols concentration and an increase in esters amounts. All the carbonyl compounds (aldehydes and vicinal diketones) were higher in beer with blueberries.

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Dunford, Nurhan Turgut. "Blueberries and health." Functional Food Science 2, no. 1 (January 17, 2022): 1. http://dx.doi.org/10.31989/ffs.v2i1.875.

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Blueberry is a high value crop globally. Both wild and cultivated blueberries are commercially available to consumers. Although mostly consumed as fresh or frozen, dried blueberries are also offered in the market. Yogurts, beverages, jams, and jellies made with blueberries are some of the products popular with consumers.Blueberries are rich in several health-beneficial phytochemicals including phenolic compounds and vitamins. This article reviews the health implications of blueberry consumption. The review was limited to the research studies published in peer-reviewed scientific journals. The impact of blueberry intake on cardiovascular functions, obesity, cancer, diabetes, cognitive performance, and gut microbiota was the focus of this review.This review clearly revealed very broad health benefits of blueberry intake. However, it is evident that scientific studies on this topic are scarce. Indeed, there are only a few studies on the health effects of blueberries published in scientific journals. The majority of the investigations on this topic were carried out using animal models or cell cultures. Scarcity and limited size of the clinical studies in this field leave many questions about the effect of blueberry consumption on human health unanswered. Undoubtedly, there is a need for large-scale controlled and randomized clinical and epidemiological studies and meta-analyses of the data from such research. This would allow for an in-depth understanding of the effect of blueberries on health and the biological and metabolic pathways involved in disease mitigation and treatment.Keywords: Blueberry, cancer, cardiovascular health, chemical composition, cognitive performance, diabetes, gut microbiota, obesity, phytochemicals

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R, Bruce. "Mangoes and Blueberries." Combinatorica 19, no. 2 (February 1, 1999): 267–96. http://dx.doi.org/10.1007/s004930050056.

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Li, Ruiqi, and Liwei Gu. "Value-Added Products for Fresh Highbush Blueberries." EDIS 2015, no. 7 (October 9, 2015): 4. http://dx.doi.org/10.32473/edis-fs268-2015.

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Blueberries are one of the most popular fruits worldwide. Blueberries’ health benefits have fueled this popularity, and today, blueberries can be found in products ranging from nutritional supplements to pet food. This 4-page fact sheet covers the processing methods such as freezing or drying that transform fresh blueberries into ingredients that can be used in other products. Written by Ruiqi Li and Liwei Gu, and published by the UF Food Science and Human Nutrition Department, June 2015.

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Tran, Phuong H. L., and Thao T. D. Tran. "Blueberry Supplementation in Neuronal Health and Protective Technologies for Efficient Delivery of Blueberry Anthocyanins." Biomolecules 11, no. 1 (January 14, 2021): 102. http://dx.doi.org/10.3390/biom11010102.

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Blueberries are consumed as healthy fruits that provide a variety of benefits to the nervous system. Scientists have found that blueberries can be used as a daily edible source for supplementation to prevent and minimize complexities of age-related diseases as well as to improve learning and memory in children. Anthocyanins are the most mentioned compounds among the components in blueberries, as they play a major role in providing the health benefits of this fruit. However, while they are highly active in impeding biological impairment in neuronal functions, they have poor bioavailability. This review focuses on neurological investigations of blueberries from in vitro cell studies to in vivo studies, including animal and human studies, with respect to their positive outcomes of neuroprotection and intervention in neurodegenerative conditions. Readers will also find information on the bioavailability of anthocyanins and the considerable factors affecting them so that they can make informed decisions regarding the daily consumption of blueberries. In this context, the ways in which blueberries or blueberry supplementation forms are consumed and which of these forms is best for maximizing the health benefits of blueberries should be considered important decision-making factors in the consumption of blueberries; all of these aspects are covered in this review. Finally, we discuss recent technologies that have been employed to improve the bioavailability of blueberry anthocyanins in the development of effective delivery vehicles supporting brain health.

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Luzan, Andrey, and Denis Goncharov. "The resource potential of the fruits of plants of the genus Vaccinium L. on the territory of the Tulunsky district of the Irkutsk region." АгроЭкоИнфо 3, no. 57 (June 3, 2023): 6. http://dx.doi.org/10.51419/202133306.

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Cranberries (V. vitis-idaea L.), blueberries (V. myrtillus L.) and blueberries (V. uliginosum L.) grow on the territory of the Tulunsky district of the Irkutsk region. At the same time, cranberries and blueberries have significant resource potential. The article presents the biological and operational reserves of these species. Since it is practically impossible to use the entire operational reserve, then, based on the average bio-productivity and taking into account the maximization of income, we offer the most optimal possible volumes of blanks. It should be noted that the yield of wild products varies significantly, so the data from year to year can vary greatly. Keywords: RESOURCE POTENTIAL, LINGONBERRIES, BLUEBERRIES, BLUEBERRIES, YIELD

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Zheng, Zhaoqi, Zimin An, Xinyu Liu, Jinghui Chen, and Yonghong Wang. "Finite Element Analysis and Near-Infrared Hyperspectral Reflectance Imaging for the Determination of Blueberry Bruise Grading." Foods 11, no. 13 (June 27, 2022): 1899. http://dx.doi.org/10.3390/foods11131899.

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Bruising of the subcutaneous tissues of blueberries is an important form of mechanical damage. Different levels of bruising have a significant effect on the post-harvest marketing of blueberries. To distinguish different grades of blueberry bruises and explore the effects of different factors, explicit dynamic simulation and near-infrared hyperspectral reflectance imaging were employed without harming the blueberries in this study. Based on the results of the compression experiment, an explicit dynamic simulation of blueberries was performed to measure the potential locations of bruises and preliminarily divide the bruise stages. A near-infrared hyperspectral reflectance imaging system was used to detect the actual blueberry bruises. According to the blueberry photos taken by the near-infrared hyperspectral reflectance imaging system, the actual bruise rates of blueberries were obtained by using the Environment for Visualizing Images software for training and classification. Bruise grades of blueberries were divided accordingly. Response surface methodology was used to determine the effects of ripeness, loading speed and loading location on the blueberry bruising rate. Under the optimized parameters, the actual damage rate of blueberries was 1.1%. The results provide an important theoretical basis for the accurate and rapid identification and classification of blueberry bruise damage.

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Li, Ying Chang, and Yu Tang He. "Anthocyanin Content and Antioxidant Activity of Different Varieties Blueberries." Advanced Materials Research 610-613 (December 2012): 3421–27. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.3421.

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Fresh fruits and vegetables are rich sources of nutrients and phytochemicals for health. Thus, consumer has increased the demand for them, particularly blueberries. Two varieties of cultivated blueberries and a wild blueberry (Vaccinium uliginosumL.) were selected in order to determine their antioxidant activity as related to their anthocyanins. Anthocyanin content of different varieties of blueberries was determined by pH differential method. Anthocyanins from different varieties blueberries were assayed for their antioxidant properties in vitro systems, including inhibiting activity on lipid peroxidation, scavenging activity on hydroxyl radical, superoxide anion radical and DPPH radical. The results showed that anthocyanin content of wild blueberry was the highest and anthocyanin content of Northland blueberry was the lowest among different varieties blueberries. Blueberries anthocyanins were effective antioxidants, and there was a dose-dependent relationship between anthocyanins content and antioxidant activity. The overall antioxidant capacity ranked on the order of Blomidon blueberry>wild blueberry>Northland blueberry. The result also showed that antioxidant property was not only correlated with anthocyanins content but also related to their composition and structure. Blueberries anthocyanins was a rich source of natural antioxidant and potential used as a food additive.

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Rock, Cheryl, Senem Guner, Wade Yang, Liwei Gu, Susan Percival, and Esmeralda Salcido. "Enhanced Antioxidant Capacity of Fresh Blueberries by Pulsed Light Treatment." Journal of Food Research 4, no. 5 (August 30, 2015): 89. http://dx.doi.org/10.5539/jfr.v4n5p89.

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As a novel technology for food safety risk mitigation, pulsed light (PL) has been shown effective in surface decontamination of fresh blueberries in literature. However, little is known about the effects of PL on the antioxidant capacity and quality characteristics of fresh blueberries. Fresh blueberries from a local farm were treated with PL for 30, 60, 90 and 120 s. Results show that PL exposure enhanced the antioxidant activity (ORAC) and total phenolic content of fresh blueberries 50 and 48% respectively, relative to the control. Pulsed light also significantly increased the total anthocyanin contents, which may be due to the upregulation of Phenylalanine Ammonium Lyase (PAL) enzymes. There was no significant difference (<em>P </em>≤ 0.05) in the soluble solids, pH, titratable acidity, firmness, color and mass of the fresh blueberries within 120 s PL exposure. In conclusion, PL illumination enhanced the antioxidant capacity of fresh blueberries while maintaining other quality characteristics.

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Wang, Jiaqi, Runan Zhao, Yuxuan Li, Haifeng Rong, Ling Yang, Ming Gao, Bingxin Sun, Yunhe Zhang, Yufeng Xu, and Xuerui Yan. "Effect and Mechanism of L-Arginine against Alternaria Fruit Rot in Postharvest Blueberry Fruit." Plants 13, no. 8 (April 9, 2024): 1058. http://dx.doi.org/10.3390/plants13081058.

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This study aimed to explore the impact of L-arginine (Arg) on the development of resistance to Alternaria tenuissima (A. tenuissima) in blueberries. The metabolism of reactive oxygen species, pathogenesis-related proteins (PRs), and jasmonic acid (JA) biosynthesis pathways were analyzed, including changes in activity and gene expression of key enzymes. The results indicated that Arg treatment could prevent the development of Alternaria fruit rot in postharvest blueberries. In addition, it was also found to induce a burst of hydrogen peroxide in the blueberries early on during storage, thereby improving their resistance to A. tenuissima. Arg treatment was observed to increase the activity of antioxidant enzymes (peroxidase, catalase, superoxide dismutase, and ascorbate peroxidase) and related gene expression, as well as the total levels of phenolics, flavonoids, and anthocyanin in the blueberries. The activity and gene expression of the PRs (chitinase and β-1,3-glucanase) were elevated in Arg-treated blueberries, boosting their resistance to pathogens. Additionally, a surge in endogenous JA content was detected in Arg-treated blueberries, along with upregulated expression of key genes related the JA biosynthesis pathway (VcLOX1, VcAOS1, VcAOC, VcAOC3, VcOPR1, VcOPR3, VcMYC2, and VcCOI1), thereby further bolstering disease resistance. In conclusion, Arg treatment was determined to be a promising prospective method for controlling Alternaria fruit rot in blueberries.

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Antal, Tamás. "Effect of different drying techniques on the drying time and energy of blueberry." Analecta Technica Szegedinensia 15, no. 1 (August 10, 2021): 23–30. http://dx.doi.org/10.14232/analecta.2021.1.23-30.

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Blueberries (Vaccinium corymbosum L.) were dried combining vacuum, infrared, hot-air and freeze drying technologies. In this paper, examined the drying time and energy consumption of dewatering methods. The rehydration as a physical property were evaluated in dried blueberries. Combination of vacuum dried and freeze dried blueberries had higher rehydration ratio, followed by the single freeze drying, combination of hot-air drying and freeze drying, and infrared-freeze drying methods. The performance evaluation indicated that combination drying of blueberries at two-stage infrared-freeze drying with 60°C and 15 min pre-drying reduced the drying time by 53.4%, besides consuming less energy (52.9%) compared to single freeze drying. Based on the results, primarily vacuum pre-drying, infrared pre-drying and freeze finish-drying may be the economical and optimal solution for dehydrating blueberries.

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Goldy, Ronald G. "Relationship of Morphological Development to Meiotic Occurrence in Various Small Fruits." HortScience 20, no. 2 (April 1985): 255–56. http://dx.doi.org/10.21273/hortsci.20.2.255.

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Abstract Flower buds of blackberries, blueberries, grapes, raspberries, and strawberries were observed in order to determine the relationship of morphological development and meiosis. Blueberries showed the least development whereas grapes and brambles had considerable development prior to meiosis. Meiotic figures were found with relative ease in blueberries, strawberries, and grapes but with difficulty in brambles.

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Kalt, Willy, and Dominique Dufour. "Health Functionality of Blueberries." HortTechnology 7, no. 3 (July 1997): 216–21. http://dx.doi.org/10.21273/horttech.7.3.216.

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Blueberries (Vaccinium sp.) have a long history of use in native and folk medicine in North America and Europe. Today the European blueberry (bilberry) is used in a variety of pharmaceutical and food supplement products that are recommended for treating blood vessel disorders and ophthalmological conditions. Anthocyanins, the pigments that impart the blue color to blueberries, are considered the active ingredient in bilberry health products, although other related flavonoids are biomedically useful. Vaccinium flavonoids are antioxidants and are also recognized for their anticarcinogenic properties and usefulness in treating urinary tract infections. The most immediate, and perhaps greatest, opportunity for a health market for North American blueberries may be in promoting blueberries as a healthy food. As researchers continue to explore the biomedical usefulness of blueberries, the blueberry food industry should strive to retain the healthful phytochemical in their products.

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Cheng, Lina, Weijun Wu, Kejing An, Yujuan Xu, Yuanshan Yu, Jing Wen, Jijun Wu, et al. "Advantages of Liquid Nitrogen Quick Freezing Combine Gradient Slow Thawing for Quality Preserving of Blueberry." Crystals 10, no. 5 (May 4, 2020): 368. http://dx.doi.org/10.3390/cryst10050368.

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Berries are perishable fruits with high nutritional value. Freezing is an effective way for food preservation. Freezing and thawing methods play key roles in preserving edible values and commodity values of food. This study investigated the effects of spray liquid nitrogen quick freezing (NF−20~−100 °C) and gradient thawing on the physical and functional characteristics of blueberries by using immersion and refrigerator freezing and microwave, ultrasonic, room- and low-temperature, and static-water thawing as comparisons. The results show that NF−80 °C freezing combined with −20~−5~4 °C. gradient thawing can retain more than 95% of polyphenols and other nutritional compounds (including pectin, soluble sugar, and vitamin C) in thawed blueberries compared with fresh blueberries. Besides, this method shows the best results in preserving the hardness, cell structure, and water distribution of blueberries. It is also revealed that the ultralow temperature (−100 °C) freezing does not bring a significant advantage in preserving blueberries. Rapid thawing methods such as microwave and ultrasound thawing are not suitable for blueberries, which might be due to their small size and thin skin. The results suggested that the combination of NF−80 °C freezing and −20~−5~4 °C gradient thawing is the optimal process for blueberry preservation. The outcomes of this study will serve as theoretical guidance for improving the industrial process for freezing and thawing blueberries.

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Stremoukhov, O. O., O. M. Koshovyi, and M. A. Komisarenko. "Research in biologically active substances of the volatile fraction from Highbush blueberry vegetative organs." Current issues in pharmacy and medicine: science and practice 14, no. 2 (June 1, 2021): 185–93. http://dx.doi.org/10.14739/2409-2932.2021.2.229004.

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Ukraine ranked second in the world after Peru in the pace of laying new Highbush blueberry plantations. Experts estimate that in 2018, in Ukraine, from 0.7 thousand hectares to 1.0 thousand hectares of new Highbush blueberry plantations were laid. Over the past 12 years, previously little-known product, Highbush blueberries have become one of the main berry crops. At present, commercial plantations blueberries take the 3rd place after black currants and strawberries. Zhytomyr region boasts the biggest areas planted with Highbush blueberries in Ukraine, followed by Volyn and Kyiv. According to estimates, the export of blueberries from Ukraine may increase to 20 thousand tons in 5 years. In addition to the use of Highbush blueberries in the food industry, they are a promising source of BAS for pharmaceutical and medical use, so their study is a promising area of pharmaceutical science. In Ukraine, there are no domestic standardized medicines manufactured from Highbush blueberries, and there are only foreign dietary and functional supplements. Abroad, Highbush blueberry medicines are used to improve vision and as astringents for colitis, enterocolitis and diarrhoea. In this regard, the development of domestic standardized medicines based on Highbush blueberries raw materials is an urgent task for modern pharmacy. The aim of the research was to study the phytochemical profile of the volatile fraction of Highbush blueberry vegetative organs (leaves, stems and fruits). Materials and methods. The objects of research were the leaves, fruits and stems of Highbush blueberry (Vaccinium corymbosum L.), in which the composition of the the volatile fraction components was studied by chromato-mass spectrometry on a gas chromatograph Agilent Technologies 6890 with a mass spectrometric detector 5973. Results. Chromato-mass spectrometry in the composition of volatile fractions of leaves, fruits and stems of Highbush blueberries revealed 65 substances. 49 substances were identified in the Highbush blueberry leaves, of which 36 substances of terpene nature, 13 organic acids, and 2 compounds were not identified. In the Highbush blueberries fruits, 47 substances were found, of which 36 substances are of terpene nature, 14 are organic acids and 3 were not identified. In the Highbush blueberries stems, 50 substances were found, of which 33 substances are of terpene nature, 14 are organic acids and one was not identified. Conclusions. As a result of phytochemical studies, it is for the first time that the component composition of volatile fractions of leaves, stems and fruits of Highbush blueberries from the flora of Ukraine was established. The content of 65 substances was identified and established, including 14 organic acids and 39 terpene compounds.

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Holloway, Patricia S., and Roxie Rodgers Dinstel. "(169) Antioxidant Levels in Frozen and Processed Lingonberries and Bog Blueberries." HortScience 41, no. 4 (July 2006): 1081C—1081. http://dx.doi.org/10.21273/hortsci.41.4.1081c.

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Frozen lingonberries (Vaccinium vitis-idaea subsp. minus) and bog blueberries (V. uliginosum) were processed using recipes of the Alaska Cooperative Extension Service. Overall antioxidant activity (H-ORAC) was 71 μmol·g-1 of TE for frozen bog blueberries and for lingonberries, 160–165 μmol·g-1 of TE. Processing into fruit leather and drying increased levels in bog blueberries to 260–430 μmol·g-1 of TE and lingonberries to 457–939 μmol·g-1 of TE. Leathers and dried fruit had significantly higher levels of total anthocyanins (frozen bog blueberries: 2.1 μg·g-1, leather: 8.0 μg·g-1, dried: 9.8 μg·g-1; frozen lingonberries 1.4 μg·g-1, leather: 4 μg·g-1, dried: 5.2 μg·g-1); total phenolics (frozen bog blueberries: 4.8 μg·g-1, leather: 19 μg·g-1, dried: 26 μg·g-1; frozen lingonberries 7.7 μg·g-1, leather 24 μg·g-1, dried: 38 μg·g-1); and quercetin (frozen bog blueberries: 6.7 μg·g-1, leather: 86 μg·g-1, dried: 150 μg·g-1; frozen lingonberries 7.7 μg·g-1, leather 110 μg·g-1, dried: 430 μg·g-1). Bog blueberries did not have detectible levels of p-coumeric acid or benzoic acid, but lingonberries showed a significant increase in dried fruit and leather (frozen fruit p-coumeric: 0.18 μg·g-1g, leather: 0.45 μg·g-1, dried: 1.4 μg·g-1; frozen fruit benzoic: 0.41 μg·g-1, leather: 0.84 μg·g-1, dried: 0.71 μg·g-1). Frozen and processed lingonberries had little or no vitamin C. Bog blueberries had detectible levels in all treatments [highest in leather (440 μg·g-1), frozen berries (220 μg·g-1)]. ORAC, total anthocyanins, total phenolics, and quercetin were detected in all other processing methods (canned fruit, syrup, canned juice, jam, sauce, frozen j uice, and freezer jam). Levels were similar to or lower than frozen fruit.

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Mainland, Charles. "OUTLOOK FOR MECHANIZATION IN SMALL FRUIT CROPS." HortScience 25, no. 9 (September 1990): 1178F—1178. http://dx.doi.org/10.21273/hortsci.25.9.1178.

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Mechanized harvest for processing markets has become commercially accepted for blackberries (Rubus sp.), highbush (Vaccinium corymbosum), lowbush (V. angustifolium) and rabbiteye (V. ashei), blueberries, cranberries (V. macrocarpon), grapes (Vitus labruscana, V. vinifera, V. rotundifolia, V. sp.), raspberries (Rubus ideaus) and to a lesser extent for strawberries (Fragaria × ananassa). Fruit bruising during harvest and sorting often contributes to reduced “eye appeal” and keeping quality for fresh sales. Highbush and rabbiteye blueberries are successfully machine harvested for fresh markets, however, high temperature and rain will often make product quality unacceptable. Highbush blueberries grown in cool climates and rabbiteye blueberries with greater inherent resistance to bruising have most consistently given acceptable quality. Cultivar improvement and equipment that causes less bruising during harvest and sorting will be required for increased mechanization for fresh markets. Mechanical pruning of blackberries, blueberries, grapes and raspberries can reduce costs by up to 80%. The audience will be involved in discussion of advancements in mechanization techniques.

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Mainland, Charles. "OUTLOOK FOR MECHANIZATION IN SMALL FRUIT CROPS." HortScience 25, no. 9 (September 1990): 1178f—1178. http://dx.doi.org/10.21273/hortsci.25.9.1178f.

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Mechanized harvest for processing markets has become commercially accepted for blackberries (Rubus sp.), highbush (Vaccinium corymbosum), lowbush (V. angustifolium) and rabbiteye (V. ashei), blueberries, cranberries (V. macrocarpon), grapes (Vitus labruscana, V. vinifera, V. rotundifolia, V. sp.), raspberries (Rubus ideaus) and to a lesser extent for strawberries (Fragaria × ananassa). Fruit bruising during harvest and sorting often contributes to reduced “eye appeal” and keeping quality for fresh sales. Highbush and rabbiteye blueberries are successfully machine harvested for fresh markets, however, high temperature and rain will often make product quality unacceptable. Highbush blueberries grown in cool climates and rabbiteye blueberries with greater inherent resistance to bruising have most consistently given acceptable quality. Cultivar improvement and equipment that causes less bruising during harvest and sorting will be required for increased mechanization for fresh markets. Mechanical pruning of blackberries, blueberries, grapes and raspberries can reduce costs by up to 80%. The audience will be involved in discussion of advancements in mechanization techniques.

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Kaarel, Soots, and Olt Jüri. "Non-stationary processing centre for small and mediumsized blueberry farms. A Review." Research in Agricultural Engineering 63, No. 3 (September 29, 2017): 136–44. http://dx.doi.org/10.17221/42/2015-rae.

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Growing blueberries on exhausted milled peat fields could be a possible solution to decrease carbon dioxide emission from these areas. To operate such crop-giving plantation manually, a lot of manpower is needed. To decrease the manpower, suitable and helpful technical solutions should be introduced. The aim of this article is to investigate different technological aspects of post-harvest processing of blueberries and to study already existing technical solutions. As a result, non-stationary processing centre for small or medium-sized blueberry farms is proposed. The proposed solution allows reducing manpower, lowering production costs and increasing the area used for growing blueberries. Also, it may encourage other farms to start growing blueberries.

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Palma, Ximena, Samanta Thomas-Valdés, and Gonzalo Cruz. "Acute Consumption of Blueberries and Short-Term Blueberry Supplementation Improve Glucose Management and Insulin Levels in Sedentary Subjects." Nutrients 13, no. 5 (April 25, 2021): 1458. http://dx.doi.org/10.3390/nu13051458.

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Background: Blueberries are polyphenol-rich fruits with antioxidant and anti-inflammatory properties. Polyphenols from berries act by blocking digestive enzymes, reshaping gastrointestinal microbiota, and affecting the release of gastrointestinal hormones to regulate insulin dynamics and glucose management. However, most studies use fruit extracts instead of fresh fruit. We aimed to evaluate postprandial glucose management and antioxidant capacity of fresh blueberries consumed acutely or as a six-day supplementation in 10 sedentary subjects. Methods: To evaluate the effect of acute blueberry intake, 150 g of blueberries were consumed together with 150 g of white bread by the subject and blood samples were collected at 0, 30, 60, 90 and 120 min to measure glucose, insulin, and plasma antioxidant capacity. To evaluate supplementation, 150 g of blueberries were provided daily for six days and sample collection was performed at day 7. Results: Acute consumption of blueberries decreased postprandial glucose area under the curve (AUC) and increased insulin levels at 15 min timepoint. Supplementation did not affect glucose levels but decreased insulin levels at 120 min. No changes in antioxidant capacity were observed. Conclusions: Consumption of fresh blueberries improves postprandial glucose management presumably due to actions on the gastrointestinal tract, while supplementation improves insulin sensitivity, probably due antioxidant and anti-inflammatory effects.

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Satheesh Babu, Adhini Kuppuswamy, Chrissa Petersen, Henry A. Paz, Kai Benedict, Miley Nguyen, Madison Putich, Miguel Saldivar-Gonzalez, et al. "Dose- and Time-Dependent Effect of Dietary Blueberries on Diabetic Vasculature Is Correlated with Gut Microbial Signature." Antioxidants 12, no. 8 (July 30, 2023): 1527. http://dx.doi.org/10.3390/antiox12081527.

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Evidence from our lab and others indicates the vascular effects of dietary blueberries. In the present study, we determined dietary blueberries’ dose- and time-dependent effects on diabetic vasculature and their association with gut microbes. Seven-week-old db/db diabetic male mice were fed a diet supplemented with ± freeze-dried wild blueberry powder (FD-BB) for 4, 8, or 12 weeks (three cohorts). Diets contained 0%, 1.23%, 2.46%, and 3.7% of FD-BB, equivalent to 0, ½, 1, and 1.5 human servings of wild blueberries, respectively. The non-diabetic db/+ mice fed a standard diet served as controls. Metabolic parameters, vascular inflammation, and gut microbiome were assessed. Dietary supplementation of 3.7% FD-BB improved vascular inflammation in diabetic mice without improving systemic milieu in all three cohorts. Blueberries improved diabetes-induced gut dysbiosis depending on blueberry dosage and treatment duration. Spearman’s correlation indicated that the opportunistic microbes and commensal microbes were positively and negatively associated with indices of vascular inflammation, respectively. Dietary blueberries reduced the opportunistic microbe that was positively associated with vascular inflammation (Desulfovibrio), and increased the commensal microbe that was negatively associated with vascular inflammation (Akkermansia). Dietary blueberries could be a potential adjunct strategy to beneficially modulate gut microbes and improve vascular complications in diabetes.

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Boches, Peter, Nahla V. Bassil, and Lisa Rowland. "Genetic Diversity in the Highbush Blueberry Evaluated with Microsatellite Markers." Journal of the American Society for Horticultural Science 131, no. 5 (September 2006): 674–86. http://dx.doi.org/10.21273/jashs.131.5.674.

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Sixty-nine accessions representing wild and domesticated highbush blueberry (Vaccinium corymbosum L.) germplasm were genotyped using 28 simple sequence repeats (SSRs). A total of 627 alleles was detected and unique fingerprints were generated for all accessions. Suspected duplicate accessions of `Coville' and `Ivanhoe' had DNA fingerprints that were identical to `Coville' and `Ivanhoe', respectively. Genetic similarity measures placed wild and cultivated blueberries in separate groups. Northern highbush blueberries grouped among ancestral clones that were used extensively in blueberry breeding such as `Rubel' and `Stanley'. Southern highbush blueberries formed a separate group from northern highbush blueberries. The microsatellite markers used here show excellent promise for further use in germplasm identification, in genetic studies of wild Vaccinium L. populations, and for constructing linkage maps.

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Bai, Xinyu, Lin Zhou, Li Zhou, Song Cang, Yuhan Liu, Rui Liu, Jie Liu, Xun Feng, and Ronghua Fan. "The Research Progress of Extraction, Purification and Analysis Methods of Phenolic Compounds from Blueberry: A Comprehensive Review." Molecules 28, no. 8 (April 21, 2023): 3610. http://dx.doi.org/10.3390/molecules28083610.

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Blueberry is the source of a variety of bioactive substances, including phenolic compounds, such as anthocyanins, pterostilbene, phenolic acids, etc. Several studies have revealed that polyphenols in blueberry have important bioactivities in maintaining health, such as antioxidant and anti-tumor activities, immune regulation, the prevention of chronic diseases, etc. Therefore, these phenolic compounds in blueberries have been widely used in the field of healthcare, and the extraction, isolation, and purification of phenolic compounds are the prerequisites for their utilization. It is imperative to systematically review the research progress and prospects of phenolic compounds present in blueberries. Herein, the latest progress in the extraction, purification, and analysis of phenolic compounds from blueberries is reviewed, which can in turn provide a foundation for further research and usage of blueberries.

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Hwang, Hyesung, Young-Jun Kim, and Youngjae Shin. "Assessment of Physicochemical Quality, Antioxidant Content and Activity, and Inhibition of Cholinesterase between Unripe and Ripe Blueberry Fruit." Foods 9, no. 6 (May 26, 2020): 690. http://dx.doi.org/10.3390/foods9060690.

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Five Korean blueberries (’’Nelson’’, ’’Duke ’’, ’’Bluejay ’’, ’’Toro’’, and ’’Elliot ’’) were harvested at two maturity stages (unripe and ripe) to evaluate fruit quality and antioxidant activities. The Hunter L, a, and b color of ripe blueberries was lower than that of unripe fruit. Soluble solid concentration (SSC) and pH increased, and titratable acidity (TA) and firmness decreased as the blueberries matured. The ripe blueberry fruits showed a higher SSC/TA ratio than the unripe fruits. Although total anthocyanin, flavonoids, phenolics content, and antioxidant activity were higher in ripe blueberries than in unripe fruit, the unripe fruit had higher acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibition activities than ripe fruit in all cultivars. Total antioxidant activity was highly correlated with total flavonoids and phenolics. The relationships between the total antioxidant activity and the AChE or BChE inhibitory activity are negative. There were several physicochemical quality and antioxidant activity differences in blueberries, depending on the cultivar and the maturity at harvest. Unripe fruits also contain potential health-promoting bioactive compounds as functional food ingredients.

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Concha-Meyer, Anibal, Joseph D. Eifert, Robert C. Williams, Joseph E. Marcy, and Gregory E. Welbaum. "Shelf Life Determination of Fresh Blueberries (Vaccinium corymbosum) Stored under Controlled Atmosphere and Ozone." International Journal of Food Science 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/164143.

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Fresh blueberries are commonly stored and transported by refrigeration in controlled atmospheres to protect shelf life for long periods of storage. Ozone is an antimicrobial gas that can extend shelf life and protect fruit from microbial contamination. Shelf life of fresh highbush blueberries was determined over 10-day storage in isolated cabinets at 4°C or 12°C under different atmosphere conditions, including air (control); 5% O2 : 15% CO2 : 80% N2(controlled atmosphere storage (CAS)); and ozone gas (O3) 4 ppm at 4°C or 2.5 ppm at 12°C, at high relative humidity (90–95%). Samples were evaluated for yeast and molds growth, weight loss, and firmness. CAS and O3did not delay or inhibit yeast and molds growth in blueberries after 10 days at both temperatures. Fruit stored at 4°C showed lower weight loss values compared with 12°C. Blueberries stored under O3atmosphere showed reduced weight loss at 12°C by day 10 and loss of firmness when compared to the other treatments. Low concentrations of ozone gas together with proper refrigeration temperature can help protect fresh blueberries quality during storage.

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Kalt, W. "Health Functionality of Blueberries." HortScience 31, no. 4 (August 1996): 693b—693. http://dx.doi.org/10.21273/hortsci.31.4.693b.

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Fruit extract of the European blueberry, or bilberry (Vaccinium myrtillus), is a major component of a great number of pharmaceutical and food supplement products. Compared to most small fruits, bilberry has a high concentration of anthocyanin pigments. Anthocyanins are of biomedical interest due to their properties as antioxidants and protein cross linkers. The major clinical applications for anthocyanins are in ophthalmology, blood vessel and connective tissue disorders, and diabetes. Bilberries are harvested from wild stands throughout Scandinavia, Eastern Europe, and at higher altitudes in southeastern France. Because they are wild, a wide array of genotypes make up the commercial product. As part of an investigation of the nutraceutical components of North American wild lowbush blueberries (Vaccinium angustifolium), we are comparing the anthocyanins and other phenolic components from fruit of commercially available Vaccinium species. We are particularly interested in the variation in composition among Vaccinium clones and species.

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Poll, J. T. K., and F. H. Wood. "BLUEBERRIES IN NEW ZEALAND." Acta Horticulturae, no. 165 (May 1985): 35–46. http://dx.doi.org/10.17660/actahortic.1985.165.3.

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Luby, James J., James R. Ballington, Arlen D. Draper, K. Pliszka, and Max E. Austin. "BLUEBERRIES AND CRANBERRIES (VACCINIUM)." Acta Horticulturae, no. 290 (May 1991): 393–458. http://dx.doi.org/10.17660/actahortic.1991.290.9.

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Jansen, W. A. G. M. "PRUNING OF HIGHBUSH BLUEBERRIES." Acta Horticulturae, no. 446 (August 1997): 333–36. http://dx.doi.org/10.17660/actahortic.1997.446.49.

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Shukitt-Hale, Barbara. "Blueberries and Neuronal Aging." Gerontology 58, no. 6 (2012): 518–23. http://dx.doi.org/10.1159/000341101.

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Gough, R. E. "Blueberries-North and South." Journal of Small Fruit & Viticulture 4, no. 1-2 (January 6, 1997): 71–106. http://dx.doi.org/10.1300/j065v04n01_03.

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Franz, Mary. "Your Brain on Blueberries." Scientific American Mind 21, no. 6 (February 2011): 54–59. http://dx.doi.org/10.1038/scientificamericanmind0111-54.

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Szybist, Mary. "Here, There Are Blueberries." Ploughshares 37, no. 4 (2011): 141. http://dx.doi.org/10.1353/plo.2011.0108.

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Sieben, Jennifer. "What makes blueberries blue?" Physics Today 2024, no. 02 (February 28, 2024): .ztul. http://dx.doi.org/10.1063/pt.utpl.ztul.

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Chun, Ho Hyun, Min Sung Kim, Kyung Sook Chung, Misun Won, and Kyung Bin Song. "Dehydration of blueberries using maltodextrin and the physicochemical properties of dried blueberries." Horticulture, Environment, and Biotechnology 53, no. 6 (December 2012): 565–70. http://dx.doi.org/10.1007/s13580-012-0761-4.

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45

NGUYEN, THAO P., LORETTA M. FRIEDRICH, and MICHELLE D. DANYLUK. "Fate of Escherichia coli O157:H7 and Salmonella on Whole Strawberries and Blueberries of Two Maturities under Different Storage Conditions." Journal of Food Protection 77, no. 7 (July 1, 2014): 1093–101. http://dx.doi.org/10.4315/0362-028x.jfp-13-517.

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Strawberries and blueberries harvested at or near full-ripe maturity tend to be less firm and more susceptible to bruising during harvest and transport. The objective of this research was to determine the fate of Escherichia coli O157:H7 and Salmonella on bruised and intact surfaces of whole strawberries and blueberries at shipping (2°C) and retail display (15.5°C) temperatures. Strawberries and blueberries were either purchased from a supermarket or were harvested immediately prior to use; they were bruised using established protocols, were spot inoculated, and were incubated at 2 and 15.5°C. Strawberries, subjected to modified atmospheres, were further transferred to bags and were sealed in with an initial atmosphere of ca. 10% CO2 and 5% O2. Strawberries were sampled at 0, 2, 5, and 24 h and on days 3 and 7; blueberries were sampled on days 0, 1, 3, and 7. After stomaching, samples were enumerated on nonselective and selective media, and populations were recorded as log CFU per berry. At both storage temperatures, population declines for both E. coli O157:H7 and Salmonella were seen under all conditions for strawberries. At 2 ± 2°C, E. coli O157:H7 and Salmonella populations on blueberries declined over 7 days under all conditions. At 15.5 ± 2°C, E. coli O157:H7 populations declined; however, Salmonella populations initially declined but increased to populations near or above initial populations over 7 days on blueberries. No overall significant differences were observed between bruised and intact treatments or between the two maturity levels for strawberries and blueberries. Modified atmospheric conditions did not affect the behavior of E. coli O157:H7 and Salmonella on strawberries at both temperatures. This research indicates that E. coli O157:H7 and Salmonella do not grow on strawberries at shipping or retail display temperatures, even when they are harvested at a maturity prone to bruising; however, Salmonella growth may occur on bruised full ripe blueberries under retail display temperatures.

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Tong, Jonathan, Cyril Rakovski, and Anuradha Prakash. "Phytosanitary Irradiation Preserves the Quality of Fresh Blueberries and Grapes during Storage." HortScience 50, no. 11 (November 2015): 1666–70. http://dx.doi.org/10.21273/hortsci.50.11.1666.

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The objective of this study was to monitor the effects of irradiation on the quality of blueberries and grapes treated at phytosanitary dose levels. Blueberry varieties ‘Star’, ‘Jewel’, and ‘Snowchaser’ and grape varieties ‘Sugraone’ and ‘Crimson Seedless’ were irradiated at a target dose of 400 Gy (range of 400–590 Gy for blueberries and 400–500 Gy for grapes) and stored for 3 and 18 days under refrigeration, plus 3 days at ambient temperatures and evaluated for quality. Storage affected quality of both fruit more than irradiation treatment and there were significant differences among varieties. Irradiated ‘Star’ blueberries maintained their firmness and sensory scores and resisted decay. Alternatively, irradiated ‘Jewel’ blueberries decreased in firmness but sensory scores for overall liking were higher than the control following 3 weeks of storage. ‘Snowchaser’ blueberries were harvested late in the blueberry season and were not as affected by treatment or time due to their initial compromised nature. Firmness was the primary attribute affected by irradiation for both varieties of grapes, but sensory testing showed that consumers did not have a preference for control or irradiated fruit. With respect to other attributes such as color, weight loss, and soluble solids concentration (SSC)/titratable acidity (TA), there were differences among fruit varieties but treatment effects were not significant. Our results show that both, blueberries and grapes, have a high tolerance for phytosanitary irradiation and that storage affects their quality more than irradiation treatment.

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Bof, María Julieta, Franco Emanuel Laurent, Facundo Massolo, Delia Elisa Locaso, Florencia Versino, and María Alejandra García. "Bio-Packaging Material Impact on Blueberries Quality Attributes under Transport and Marketing Conditions." Polymers 13, no. 4 (February 3, 2021): 481. http://dx.doi.org/10.3390/polym13040481.

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Blueberries are highly appreciated for their high antioxidant content but are also particularly susceptible to fungal deterioration. In this work, corn starch and chitosan, byproducts of the fishing industry, as well as active compounds obtained from citrus processing waste were used to obtain active biodegradable film packaging. Blueberries were packed in corn starch–chitosan (CS:CH) films and in active films containing lemon essential oil (LEO) or grapefruit seed extract (GSE). The effects of film packaging on the quality parameters of berries and the fungal incidence of disease during storage were studied and compared to benchmark materials. A conservation assay simulating transport and commercialization conditions was conducted. Blueberries packed in CS:CH films showed antioxidant capacity values closer to those packed in commercial PET containers (Clamshells), preserving 84.8% of the initial antioxidants content. Fruit packed in LEO films exhibited the greatest weight loss and rot incidence, and poor surface color. CS:CH and GSE films controlled the fruit respiration rate and weight loss, therefore they are materials with adequate barrier properties for blueberries conservation. Bags formulated with GSE showed adequate barrier properties to maintain fruit quality attributes without the incidence of rottenness, being an interesting option for blueberries exportation.

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Gromova, Irina Aleksandrovna, Marianna Sergeyevna Voronina, and Nadezhda Viktorovna Makarova. "INVESTIGATION OF CHEMICAL CHARACTERISTICS IN WASTE OF JUICE PRODUCTION OF BLUEBERRIES AND BLACK CURRANTS." chemistry of plant raw material, no. 1 (March 16, 2021): 251–57. http://dx.doi.org/10.14258/jcprm.2021017020.

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This article examines the chemical characteristics contained in the waste of juice production of black currants and blueberries. the influence of antioxidant substances on the human body is considered. The aim of the article is to study the chemical composition and antioxidant activity of freshly frozen blueberries and black currants, fresh juice of blueberries and black currants, raw and dried pomace of the studied berries, which underwent short-term heat treatment, water extracts and concentrated water extracts of these berries, as well as the subsequent comparison of the values of all data. We demonstrate methods for determining the total content of phenolic compounds, total flavonoids, total anthocyanins, FRAP method (method for determining antiradical activity), a method for evaluating antioxidant properties using a model system of linoleic acid, as well as a method for determining the restoring force. Studies were carried out on water-alcohol extracts obtained at atmospheric pressure and temperature of 37 °C. The results of the study show that dried blueberries, compared with other objects studied as blueberries and blackcurrants, have the maximum values of all chemical characteristics, which is the best option for human health.

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Marroquin, E., J. L. Silva, J. Magee, J. Braswell, and J. Spiers. "Electron and Light Microscopy Structure and Polysaccharide and Pectic Composition of Highbush and Rabbiteye Blueberries." HortScience 30, no. 4 (July 1995): 890B—890. http://dx.doi.org/10.21273/hortsci.30.4.890b.

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Rabbiteye (Vaccinium ashei) blueberries were harvested in Mississippi and highbush (V. corymbosum) blueberries were harvested in Michigan. The berries were rapidly cooled to 5C after harvest and kept at this temperature for 48 h before being analyzed as fresh fruit or freezing for later analyses. Microstructural (light and scanning/transmission electron microscopy) and chemical (pectins, cellulose, hemicellulose, lignin, and fiber) evaluations were performed to evaluate differences between the two types of blueberries. Scanning electron micrographs showed that rabbiteye spp. have thicker epidermal and subepidermal cells than highbush spp. Transmission electron micrographs also showed that rabbiteye spp. have a thicker, more uniform cuticle layer than highbush spp. Rabbiteye spp. contained higher fiber and complex polysaccharides than highbush spp. Although, there were no differences in total pectins, rabbiteye berries had lower water soluble pectins and oxalate soluble pectins than highbush blueberries. Differences in polysaccharides and pectins between highbush and rabbiteye berries indicate that their cell wall components differ. These differences, along with the variation in subepidermal, epidermal and cuticle layers of the skin, provide valuable information to explain the textural differences between rabbiteye and highbush blueberries.

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Medina-Jaramillo, Carolina, Carmen Quintero-Pimiento, Darío Díaz-Díaz, Silvia Goyanes, and Alex López-Córdoba. "Improvement of Andean Blueberries Postharvest Preservation Using Carvacrol/Alginate-Edible Coatings." Polymers 12, no. 10 (October 14, 2020): 2352. http://dx.doi.org/10.3390/polym12102352.

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Edible coatings are attractive strategies for blueberries postharvest preservation. In this work, carvacrol/alginate coatings were developed for application on Andean blueberries. Coating formulations were prepared based on blends of sodium alginate (2% w/v), carvacrol (0%, 0.03%, 0.06% or 0.09%), glycerol, and water and applied to the fruits by dip-coating. Then, the fruits were immersed in a calcium batch to induce a crosslink reaction. Changes in the physicochemical and microbiological characteristics of the blueberries were monitored during 21 days of storage at 4 °C. Coated blueberries were better preserved throughout the 21 days of storage because of their lower respiration rate and water loss, in comparison with the uncoated ones. Besides, the coatings enhanced the appearance and the gloss of the fruits. Control fruits showed a significant decrease in the firmness, while, in the coated fruits, this critical postharvest quality was preserved during the entire storage. Coating formulations with 0.09% of carvacrol was the most effective in preventing mesophilic aerobic bacteria and molds/yeasts growth on the fruits during the storage. Edible carvacrol/alginate coatings can be considered as a useful alternative to complement the benefits of refrigerated storage by delaying post-harvest spoilage of Andean blueberries.

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Journal articles on the topic 'Blueberries'

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